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제작자가 쓴 설명(영어 원문)
Automatic project memory for Claude Code and Cursor; Codex and Claude Desktop over MCP.
이 세 가지는 절대 하나의 점수로 합치지 않아요. 의견, 측정, 인기는 서로 다른 것이니까요.
이 서버는 아직 쉬운 말로 된 요약을 쓰지 못했어요. 아래는 레지스트리에서 읽어 온 사실이에요.
쓰고 있는 AI 앱을 고른 다음 설정을 복사하세요.
TYPESAFE_API_KEY, JEVMEM_ROOT, TYPESAFE_BASE_URL, JEVMEM_CACHE비밀로 표시된 값은 내 계정의 열쇠예요. 절대 다른 사람과 공유하거나 채팅에 붙여 넣지 마세요.
필요한 것
어떤 앱을 쓰세요?
위에서 앱을 고르세요. 기억해 두었다가 다음부터는 버튼에 “…에 설치”라고 표시해요.
Claude Desktop → Settings → Developer → Edit Config를 열고 claude_desktop_config.json에 이 내용을 붙여 넣으세요
{
"mcpServers": {
"jevmem": {
"command": "npx",
"args": [
"-y",
"jevmem",
"mcp"
],
"env": {
"TYPESAFE_API_KEY": "your-value",
"JEVMEM_ROOT": "your-value",
"TYPESAFE_BASE_URL": "your-value",
"JEVMEM_CACHE": "your-value"
}
}
}
}터미널에서 이 명령어를 실행하세요
claude mcp add jevmem --env TYPESAFE_API_KEY=your-value --env JEVMEM_ROOT=your-value --env TYPESAFE_BASE_URL=your-value --env JEVMEM_CACHE=your-value -- npx -y jevmem mcp실행하기 전에 빈 값을 채워 주세요.
프로젝트의 .cursor/mcp.json 또는 ~/.cursor/mcp.json에 붙여 넣으세요
{
"mcpServers": {
"jevmem": {
"command": "npx",
"args": [
"-y",
"jevmem",
"mcp"
],
"env": {
"TYPESAFE_API_KEY": "your-value",
"JEVMEM_ROOT": "your-value",
"TYPESAFE_BASE_URL": "your-value",
"JEVMEM_CACHE": "your-value"
}
}
}
}브라우저가 앱을 열지 물어본 다음, 앱이 설정을 보여 주고 확인을 요청해요. 키 값은 비워 두니 직접 입력하세요.
프로젝트의 .vscode/mcp.json에 붙여 넣으세요
{
"servers": {
"jevmem": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"jevmem",
"mcp"
],
"env": {
"TYPESAFE_API_KEY": "your-value",
"JEVMEM_ROOT": "your-value",
"TYPESAFE_BASE_URL": "your-value",
"JEVMEM_CACHE": "your-value"
}
}
}
}브라우저가 앱을 열지 물어본 다음, 앱이 설정을 보여 주고 확인을 요청해요. 키 값은 비워 두니 직접 입력하세요.
이 서버는 내 컴퓨터에서 실행되는데, ChatGPT는 인터넷에 있는 서버에만 연결할 수 있어요. 다른 앱을 고르세요.
선택한 앱은 이 기기의 쿠키에만 저장돼요. 계정은 필요 없어요.
JEVMEM_ROOT envTYPESAFE_BASE_URL envJEVMEM_CACHE env이 설정은 제작자의 레지스트리 정보로 만들었어요. README와 다르면 README를 따르세요.
내 컴퓨터에서 실행돼요. 설치하면 AI 앱에 도구 목록이 나타나요.
누구나 볼 수 있는 정보를 점검했고, 코드는 읽지 않았어요. 해당하지 않는 항목은 개수에서 뺐어요. · 2026년 11월 7일 점검
레지스트리 이름이 GitHub 계정 Avinash-jetwani 기준으로 확인되었고, 이 계정이 저장소를 소유하고 있어요
아직 GitHub에서 이 저장소를 읽어 오지 않았어요
아직 GitHub에서 이 저장소를 읽어 오지 않았어요
내 컴퓨터에서 실행되는 서버라 인터넷 엔드포인트가 없어요
내 컴퓨터에서 실행되며, 대신 로컬 설정을 사용해요
내 컴퓨터에서 실행돼요. 도구 목록은 인터넷 엔드포인트가 있는 서버에서만 읽을 수 있어요
레지스트리에서 이 카테고리의 활성 서버 전체와 비교했어요. 스타는 게시자가 저장소를 소유한 경우에만 세요.
해당하는 기본 점검 1개 중 1개를 통과했어요. 코드는 읽지 않았어요. 키나 토큰을 넣기 전에 서버가 어떤 권한을 요구하는지 확인하고, 꼭 필요한 권한만 있는 키를 쓰세요.
입력해야 할 값: TYPESAFE_API_KEY
내 컴퓨터에서 실행돼요. AI 앱이 필요할 때 실행하고, 데이터는 제작자의 서버를 거치지 않아요(서버 자체가 온라인 서비스를 호출하는 경우는 제외).
GitHub 저장소는 마지막으로 – 변경됐고, 최신 버전(0.7.6)은 18일 전 레지스트리에 올라왔어요.
Claude Desktop, Claude Code, Cursor, VS Code처럼 MCP를 지원하는 앱에서 쓸 수 있어요. 내 컴퓨터에 Node.js도 있어야 해요.
같은 카테고리에는: Context7, Codebase Memory, Exa
같은 카테고리에서 다른 제작자가 만든 서버예요. 스타 순으로 정렬했어요.
카드 보는 법:★ GitHub 스타i세 기둥: 리뷰 · 점검 · 사용 정도i업데이트 = 최신 버전을 레지스트리에 공개한 날i
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제작자의 저장소에서 쓰인 그대로 가져왔어요. PopNx MCP가 검토하거나 보증한 내용이 아니에요. HTML, 이미지, 스크립트는 제거했어요. 링크를 누르면 이 사이트를 벗어나요.
Say it once. jevmem saves the decisions, rules and failed approaches from your Claude Code chats to JEVMEM.md in your repo, and brings the relevant ones back next session. Before Claude runs a command or edits a file, it checks the call against your saved rules. It is open source (MIT), built on TypeSafe AI's Jev, in Anthropic's Claude plugin directory and on the MCP Registry. Since 0.7.4 it saves from Cursor chats the same way, as a Cursor plugin since 0.7.6, and it works with Codex and Claude Desktop over MCP.
In Anthropic's Claude plugin directory · On the MCP Registry · Open source, MIT
The docs site, one page per question: avinash-jetwani.github.io/jevmem
https://github.com/user-attachments/assets/c8a7eced-c427-4ef6-85f2-124eb34ad291
Each Claude Code session starts with a fresh context, so what you decided last week lives in last week's chat. A CLAUDE.md file helps if you keep it up to date. jevmem keeps a file like it up to date for you, as you work.
In real Claude Code sessions on three small test projects, with jevmem and without it:
CLAUDE.md you keep up to date by hand did about as well (67 of 72), and better on one convention nothing in the prompt points at (3 of 3 against 0 of 3). jevmem keeps a file like it up to date for you, and since 0.7.1 marks such rules always-on, so they reach every session: 18 of 18 on six held-out tasks written for that gap, against 14 of 18 with 0.7.0.My own test sets, each number from one run; none is an independent benchmark. Method and results
You chat as usual. When you decide something, jevmem writes it as one line in a file in your repo, and brings the right lines back next session.
JEVMEM.md in your repo.Change your mind, and the old line is crossed out: kept for history, not sent to Claude. Your team gets the same file through git.
jevmem keeps decisions, rules, bugs, to-dos and dead ends (an approach that was tried and failed, with the reason).
- [superseded] We'll use SQLite as the primary store for now. → id:cuasaq
About these lines
Each line also carries a comment with its id, time and confidence, left out above. The full lines:
- [superseded] We'll use SQLite as the primary store for now. → id:cuasaq <!-- id:21ycba ts:2026-09-26T13:46:34.703Z conf:1.00 by:cuasaq -->
Real lines from 0.5.7's default writer, which 0.5.8 to 0.5.10 did not change (the run, 2026-09-26). It kept one sentence of each turn: the Postgres turn also said "SQLite locks up under concurrent writes", and that reason was left out. Since 0.6.0 the line is made from the sentences Jev picks, the one that states the memory and the one that gives its reason (What's new). With writer set, an OpenAI or Anthropic model condenses the whole turn instead.
In 72 real Claude Code sessions for each setup, Claude acted on the saved line about as often with jevmem as with the same lines in a hand-written CLAUDE.md, and in fewer than half the sessions with neither.
| No project memory | jevmem | Same lines in CLAUDE.md | |
|---|---|---|---|
| Followed the project's decision | 28 of 72 | 66 of 72 | 67 of 72 |
| Tried a change the project forbids | 10 of 18 | 0 of 18 | 0 of 18 |
| Repeated an approach that had already failed | 3 of 15 | 0 of 15 | 0 of 15 |
So jevmem did about as well as a hand-written CLAUDE.md, without you writing it. CLAUDE.md did better on a convention nothing in the prompt points at (3 of 3 against 0 of 3), measured on 0.6, where jevmem brought a line back only for a prompt it bears on. Since 0.7.1 jevmem marks a rule every change must follow always-on and sends it at the start of every session: on six held-out tasks written for that gap, Claude followed the convention in 14 of 18 sessions with 0.7.0 and 18 of 18 with 0.7.1, as with the same lines in a hand-kept CLAUDE.md (what's new, limits). How the sessions were run, and every row: the benchmark page.
Before Claude runs a command or edits a file, jevmem checks it against your saved rules. If one might break, Claude Code asks you first:
jevmem: this may break a saved rule: "Never commit .env files" (JEVMEM.md)
On a test of 274 tool calls, a set the guard was not tuned on, it caught 66 of 68 rule breaks and asked about 3 or 4 of the 206 calls that broke no rule (one run each on 0.6.0 and 0.6.1). It's a backstop, not a sandbox: it looks at the words a rule and a call share. Since 0.7.0, jevmem trust lets a rule you added by hand block a call in the guard's block mode, not only ask about it. How the guard works.
A pane beside your Claude Code chat shows what jevmem just did: the memory lines it gave Claude for your prompt, what its guard said about a command, and the line it saved from the turn, each with why, wrong and forget buttons. The two that change JEVMEM.md ask first; a rule is retired in a terminal only. It reads three local files and sends nothing anywhere.
/plugin install jevmem-pane@jevmem
It is a second plugin from the jevmem marketplace (the jevmem plugin itself still ships no code), for Claude Code 2.1.299 or newer; it opens on its own in a terminal 144 columns wide or wider and in the desktop app's Code tab, and /jevmem opens or closes it anywhere. What each block shows, and what was measured: docs/pane.md.
You need a TypeSafe API key, which jevmem's requests are billed to, and Claude Code 2.1.273 or later.
npm install -g jevmem
jevmem setup
Start Claude Code in that project. If you start it before the setup is done, the plugin says once what is left; jevmem doctor checks the setup any time.
Other ways to install: the jevmem marketplace, npm, Cursor, Codex
From the jevmem marketplace:
npm install -g jevmem
claude plugin marketplace add Avinash-jetwani/jevmem claude plugin install jevmem@jevmem claude plugin install jevmem-pane@jevmem # the side pane (0.7.5), optional cd your-project && jevmem setup
With npm only (also sets up Cursor and Codex):
npm install -g jevmem
cd your-project jevmem init --tool claude # or cursor, codex, claude-desktop, all
In Cursor, the jevmem plugin (0.7.6) carries the hooks, the MCP server and the rule for every window: install it from the Cursor Marketplace once it is listed there, or copy this repository's cursor-plugin/ folder to ~/.cursor/plugins/local/jevmem and reload the window; then jevmem setup in each project (the steps).
Already have a CLAUDE.md? jevmem import shows what it would add from it; --apply writes it.
Every step, and what to do if the plugin can't find the CLI: docs/install.md.
Saving is automatic in Claude Code and, since 0.7.4, in Cursor, where Cursor's hooks save each finished agent turn (since 0.7.6 from the jevmem plugin for Cursor, or from the files jevmem init --tool cursor writes); and in Codex while jevmem watch runs. Cursor, Codex and Claude Desktop reach jevmem over MCP, a standard way for an AI tool to call another program, when the agent asks for it; the Cursor plugin's server runs in every window, while a project's own .cursor/mcp.json server starts off until you turn it on once (the step). In Cursor, on 10 held-out chats captured before the code (24 turns), the first run paired 21 of 24 turns whole, the prompt with the whole reply; a reader fix came from that run, and the second run paired 24 of 24, with what to save right in 21 of 24 (measured).
| Saving | Bringing it back | |
|---|---|---|
| Claude Code | Automatic, every turn | Automatic, every prompt |
| Codex | Automatic while jevmem watch runs | When the agent asks, over MCP |
| *
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